CN106232924A - The locking device of public passenger transportation vehicle sliding plug door and there is the stopping sliding door of locking device - Google Patents

Abstract

The present invention relates to the locking device (10) of the stopping sliding door of a kind of vehicle for vehicle especially public passenger transportation, including at least one door leaf that can slide on the longitudinal direction of described vehicle and the driver (50) moving described door leaf between Guan Bi and open position, wherein, locking device (10) includes can being introduced into dead-centre position thus locks the bar (20 of described door in make position；30；40).It is a feature of the present invention that, locking device (10) includes base plate (11), is rotatably installed in respective bearing (13 at the upper latch (20) of base plate (11) and bell crank (40) in the plane being parallel to described base plate plane；14) in.Bell crank (40) and latch (20) are mutually hinged by the locking lever (30) being arranged on described bell crank and described latch, wherein, can be by bell crank (40) by hinged locking lever (30), locking lever (30) and latch (20) introduce a position, in this position in crossing in dead-centre position, between joint (32) between the connecting line (VV) bearing (13) and locking lever (30) and latch (20) in bell crank (40), between joint (31) between the connecting line (VU) bearing (13) and bell crank (40) and locking lever (30) in bell crank (40).By the described dead-centre position of crossing of the reverse hinged release of locking lever (30), wherein latch (20), bell crank (40) and locking lever (30) can be arranged in the same side of base plate (11).

Description

Locking devices for sliding doors of public passenger transport vehicles and plugs with locking devices sliding door

The invention relates to a locking device for a sliding door of a vehicle, in particular to a vehicle for public passenger transportation. Such a sliding door typically comprises at least one leaf which can be shifted in the longitudinal direction of the vehicle and a drive which moves said leaf between closed and open positions. In this case, the locking device often comprises a lever assembly with a plurality of levers, which can be brought into an over dead center position in order to lock the door in the closed position of the door.

The known drive system of the sliding door is in particular a guide system. In this case, the pivoting and sliding movement of the door leaf is defined by the swivel arm and the associated rail track. However, the door drive is not locked in its end position, but the door is locked by a further locking system acting on the edge of the door leaf.

In particular, locking systems of this known type employ an over-dead center position of the assembly in order to keep the vehicle door in a certain position, ie, in particular, to prevent said door from being opened due to the pressure exerted inside the vehicle. However, inadvertent closing of an open door can thus also be prevented. For example, patent DE 199 58 746 B4 discloses a locking mechanism for a vehicle swing door in such a way that the door is supposed to be held in the open position. When the vehicle is parked on an uphill or downhill, with the swing door in the open position, this makes it possible to prevent the open door leaf from rotating the relative axis of rotation about its axis of rotation due to its own weight so that the door drops closed . This is achieved in connecting the swivel arm to the cam disc on the drive shaft via a connecting rod and a connecting rod bearing. When the door is opened, the connecting rod and the connecting rod bearing are in an over dead center position, and the connecting rod bearing is pressed more and more into the over dead center during the movement of the rotating shaft in the direction of closing the door. dead center position. In this way, the door can be prevented from closing inadvertently. However, if the door is intended to be closed, a torque is exerted on the drive shaft, thereby rotating the cam disc arranged thereon. This also causes the connecting rod bearing to be pivoted out of the over dead center position.

Furthermore, for example, utility model DE 20 2005 015 169 U1 describes a sliding plug door with support rails and locking means, which can be easily installed and adjusted. In this case, dead center or over dead center locking mechanisms are also used to prevent inadvertent unlocking of closed doors, for example due to strong vibrations or shocks. This is accomplished with a shrink disc connected to the drive motor housing by a system of levers and coupling rods. The drive motor housing is mounted rotatably about the drive shaft axis so that the reaction force of the drive motor can be transmitted to the shrink disk via the coupling rod and the lever system. The locking disc has a feature locking slot, and the door is locked by using the reaction force of the drive motor to rotate the locking disc into a position in which the locking bolt is Located in the slot in such a way that the door cannot move in the direction of movement of the support rail. In this closed position, the dead center position of the lever system prevents opening of the door, wherein this is additionally fixed together with the locking mechanism via the locking bolt.

Locking mechanisms of this type have proven to be reliable in practical use, but depend on their design with the disadvantages of fine workmanship. For example, a different rotatably mounted assembly of the locking mechanism would have to be connected to the other side of the chassis. In particular, relatively thin plates and bearings with a small height are used for this purpose, preventing the vertical dimension of the locking mechanism from exceeding a certain size. Furthermore, the bearing bolts are connected to the base plate by means of welding.

The invention is therefore based on the aim of making available a locking device for sliding doors of a vehicle, in particular a vehicle of public passenger transport, whose operation is accompanied by maximum reliability and which can be produced very easily.

According to the invention, this object is achieved by a locking device according to independent claim 1 . Advantageous advantages of the locking device are disclosed in the dependent claims 2-14. Furthermore, the objects defined above are achieved by a sliding door according to claim 15 having such a locking device.

In this regard, it should be noted that the individual features recited in the claims can be combined with each other in any technically reasonable way to form further embodiments of the invention. In addition, the description represents the characteristics of the invention and specifically explains the invention, particularly with respect to the drawings.

Said inventive locking device is suitable for a sliding door of a vehicle, especially a vehicle of public passenger transport, wherein the door comprises at least one door leaf capable of being shifted in the longitudinal direction of said vehicle and between a closed and an open position A drive that moves the door leaf. In this case, the locking device comprises a lever assembly which can be brought into an over-dead-center position, thereby locking the door in the closed position of the door.

According to the invention, the locking device is characterized by a base plate on which the locking plate and the bell crank are mounted rotatably in respective bearings in a plane extending parallel to the plane of the base plate. In the context of the present invention, the term "parallel" characterizes only the plane of position and rotation of the locking plate and the bellcrank relative to the base plate, but does not require absolute parallelism of these components relative to each other. Furthermore, the bell crank and the locking plate are connected to each other by means of locking levers which are respectively mounted in an articulated manner on these components, wherein due to the articulation of the locking levers it is possible to move the bell crank, the The locking lever and the locking plate are brought into a position in which the connection between the bearing of the bellcrank and the joint between the locking lever and the locking plate line and the connecting line between the bearing of the bellcrank and the joint between the bellcrank and the locking lever is in the over dead center position, wherein, through the reaction of the locking lever Release this over dead center position towards the hinge. Thus, the bell crank and the locking lever are brought into the over dead center position, thereby locking the door, but the locking plate is also rotated at the same time and can be used for additional locking. If it is not used for supplemental locking, it merely forms part of the lever assembly implementing the dead center locking mechanism.

In the over dead center position of the bell crank and of the locking lever, the locking mechanism cannot be unlocked by exerting pressure, especially on the inner side of the leaf/leaves. In this case, the locking plate, the bellcrank and the locking lever are arranged on the same side of the base plate. This inventive arrangement of the components on the base side has the advantage in particular that a very compact and easy-to-manufacture arrangement can thus be produced. The locking device can be manufactured in the form of a prefabricated assembly and then mounted on the door entrance via the base plate. Similar locking devices known in the prior art often feature rotatable assemblies on either side of the base plate, wherein the base plate is tilted multiple times. For example, grooves, indentations or cavities are made in the plate with respect to the individual components so as to minimize the height of the entire locking device. If the locking device is arranged, for example, in the upper region of the door entrance, it requires only a very small installation space in the vertical direction. Since the drive with one or more guide rails is usually also accommodated in this area, the locking device should complement the respective drive unit in a simple and space-saving manner. In some cases, however, components such as bearings can only be joined to relatively thin base plates by welding, for example because the material thickness is often insufficient to screw in the bolts. It is also possible to use only short bearings without having to increase the height of the locking device.

However, the invention makes it possible to use simple flat plates without inclined parts, thereby considerably simplifying the manufacture of said plates. Furthermore, the base plate can be realized rather thick, for example about 10-15 mm. For example, if the bearings for mounting the locking plate and/or the bell crank, respectively rotatable relative to the base plate, comprise bolts fastened to the base plate, the bolts can be screwed into the base plate. Furthermore, longer bearings can be used. The height of the bearing bolts may lie, for example, on the order of 20-40 mm.

In an embodiment of the invention, for example, the bell crank and/or the locking plate, respectively, are realized in the form of a plate, on which a hollow cylinder is formed in the region of the respective bearing. The longitudinal axis of the hollow cylinder extends perpendicularly to the plate plane of the bell crank and/or the locking plate, wherein the length of the hollow cylinder is greater than the thickness of the respective plate. Thus, the hollow cylinder protrudes from the plate-like component. In this case, the bolts of the respective bearings can be rotatably guided in this hollow cylinder or the hollow cylinder can be rotated relative to the bolts. In this way, a stable bearing of the rotatable assembly of the locking device can easily be achieved without having to weld the assembly to the base plate.

In a further embodiment of the invention, the locking plate features a locking groove in which a locking element rigidly arranged on the vehicle engages at least in the closed position of the locking device. In this case, the position of the locking element relative to the vehicle does not change. In this embodiment, the locking plate is additionally used to lock the door due to the interaction of elements on the vehicle with the rotatable locking plate. In this case, preferably, the locking plate is arranged in the closed position such that the locking element limits the movement of the locking plate transverse to the longitudinal direction of the vehicle, wherein in the unlocked position it is arranged The locking plate and thus the locking element do not restrict movement of the locking plate transverse to the longitudinal direction of the vehicle. In this way, the door can be locked not only due to the dead center position of the bell crank and the locking lever, but also by means of an additional locking mechanism. Similar to a swivel bolt, the function of this additional locking mechanism depends on the angle of rotation of the locking plate.

In this case, preferably, the movement of the door transverse to the longitudinal axis of the vehicle is restricted, but the sliding movement of the door along this longitudinal axis is not restricted. This is the case, for example, when the drive is installed so that it can be transferred transversely to the longitudinal axis of the vehicle together with the support rails to pivot the door leaf at the beginning of the opening process before transferring the door leaf along the outer wall. Swivel out the outer walls of the vehicle. Conversely, this also serves at the end of the closing process, thereby pivoting the door into the outer wall.

The locking groove of the locking plate can consist, for example, of a slot which is open towards one side, wherein the locking element can be engaged into and released from the slot depending on the angle of rotation of the plate. open. However, in an embodiment of the invention, said locking groove consists of a closed oval hole in said locking plate. When the longitudinal axis of the oval hole extends transversely to the direction in which a movement of the locking plate and thus the door is to be prevented in the locked position, the locking element limits this movement. Preferably, this direction of movement is a direction extending transversely to the longitudinal axis of the vehicle, since in particular a closed door should be prevented from being pushed open. However, in the unlocked position of the locking device, during the movement of the locking plate transverse to the longitudinal direction of the vehicle, the locking element is movable within the oval hole, so that the above-mentioned sports.

According to an embodiment of the invention, it is further proposed that a stop is formed on the base plate, wherein the locking plate abuts in a defined over dead center position between the bell crank and the locking lever. The block. Alternatively, it is also conceivable that the locking lever abuts against a stop on the base plate in a defined position in the locked state of the locking device. In this regard, the stop may consist of a component protruding from the base plate. In an advantageous embodiment of the invention, the locking lever abuts against the bearing of the bell crank, so that no additional elements are required. In this case, the locking lever can abut the bearing bolt or the circumference of the hollow cylinder of the bell crank, in which the bearing bolt is guided. In this way, the bearing of the bell crank can be used for different purposes, wherein the locking lever can abut directly or indirectly against the bearing. For example, in an indirect variant, a plastic part can be arranged locally on the locking lever made of metal, wherein the plastic part is in contact with the stop in the form of a bearing. In order to achieve this, the contact surface of the plastic part can be realized in a concave manner so as to abut against the bearing bolt or the hollow cylinder of the bellcrank, respectively. The use of plastic parts has the advantage that, for example, the bearing remains intact even after the locking lever has contacted the bearing several times. However, it is also possible to form the concave contact surface directly on the metal locking lever.

Furthermore, a drive element for releasing the over dead center position between the bell crank and the locking lever is formed on the bell crank. For example, the drive element may consist of a bolt protruding from said bell crank. The over dead center position can be released by rotating the bell crank about the bolt. In this case, the locking plate also rotates simultaneously with the bell crank. For example, the drive element can be manually driven via a Bowden cable in an emergency, so that the door can also be opened without a drive drive.

Furthermore, a catch element is formed on the base plate, wherein the locking lever can engage into the catch element in a defined position in the locked state of the locking device. Various materials, shapes, etc. can be used to realize such a catch element. For example, it has proven advantageous to use catch elements in the form of corrugated metal plates spring-mounted on the floor surface. In this case, the locking lever can engage between two levels of the corrugated metal sheet, wherein the adjacent level yields elastically in the direction of the base plate when the locking lever comes into contact therewith (resiliently yield). In order to improve the sliding movement of the locking lever along the upwardly curved height, the underside of the locking lever directed towards the bottom plate may feature a round stud or a hemisphere.

Furthermore, the invention relates to a sliding door of a vehicle, in particular a vehicle of public passenger transport, which is characterized by a locking device according to one or more of the described embodiments.

Further advantages, specific features and practical improvements of the invention can be gleaned from the dependent claims and the following description of preferred exemplary embodiments with reference to the attached drawings.

Fig. 1 shows the first partial view of the driving unit of the sliding door of the typical embodiment of the inventive locking device;

Figure 2 shows a second partial view of the drive unit according to Figure 1;

Figure 3 shows a schematic view of the locking device in the closed position; and

FIG. 4 shows a schematic view of the locking device according to FIG. 3 in the open position.

Figure 1 shows a first partial view of a drive unit for a sliding door of a typical embodiment of the inventive locking device. Such a sliding door is known, for example, from EP 1 527 975 A1, so that such a sliding door can be realized. In this case, the drive unit is able to drive and move one or both door leaves between open and closed positions.

In order to achieve this, for example, one or both door leaves are respectively connected in the manner of support arms to a guide rail unit which is suspended in support guide rails which are arranged in the upper region of the door entrance. At its two ends, said support rails are respectively rigidly connected to frame parts, preferably each frame part is guided in a transverse rail rigidly connected to the door entrance so as to be able to extend horizontally and transversely to the door opening. direction to shift it. The transverse rail has a feature that is connected to the door entrance, wherein a rail track extending in the transverse direction is arranged in the fitting to accommodate and guide rail rollers arranged on the bracket part.

Figure 1 partially shows such a suspension of the support rails, wherein the support rails 53 are characterized by cross beams 67 on the sides shown and on each side are guided in transverse rails arranged on the door entrance not shown The respective bracket parts 60. The transverse guide is arranged on the door entrance via a fitting 63 , said transverse guide comprising a guide track 62 with respect to a corresponding guide roller 61 of the support part 60 . The other side of the support rail 53 can similarly be implemented so that the support rail 53 can be fully shifted transversely to the direction of travel of the relevant vehicle.

Furthermore, the support rails 53 feature conventional rail tracks for each door leaf, wherein the rail tracks extend over a partial door width and (not shown) guide the rail units respectively thereon. In this case, it is possible to arrange the guide rails close to each other and realize the guide rail units so that they can move unimpededly past each other. Thanks to the aforementioned transverse guides, it is possible to transfer the support rails together with the door leaf outwards from the closed position, where the door leaf is located in the vehicle wall, in an intermediate position, where the door leaf is located outwards in a vehicle not shown the front of the wall. In this intermediate position, the door leaves can be counter-transferred parallel to the longitudinal axis of the vehicle until they reach the fully open position.

Fittings 63 rigidly arranged on said door entrance with respect to rail tracks 62 extending in transverse direction are rigidly connected to each other by drive plates 64 arranged horizontally above and parallel to support rails 53 . The motor 50 acts as a drive unit to shift the door leaf in the longitudinal direction, and to move and lock the support rails in the transverse direction. For example, the motor can consist of an electric planetary motor with a reduction gear. However, it is also possible to use other means of actuation, for example pneumatic actuation. In the exemplary embodiment shown, the output shaft of the motor 50 of the planetary belt reduction gear is connected by a helical gear 51 to a drive roller which, together with other elements, forms a belt drive, such as a counter idler roller and a drive belt. The guide rail units are respectively connected to the drive belt by means of transmission elements 54 in such a way that their longitudinal movements respectively take place in opposite directions. In this case, guide rollers 55 can be arranged on the transmission element 54 and guide the drive unit on guide rails, not shown, so that a swivel-sliding movement of the door is achieved.

According to the drawings, the electric motor 50 of the planetary reduction gear is arranged in such a way that its casing extends in the longitudinal direction of the vehicle. In addition, the housing of the motor is mounted on a support rail 53 rotatable about an axis of rotation aligned with the output shaft. Furthermore, the housing is rotatable relative to the housing of the helical gear 51 , wherein this can be achieved by sliding bearings, ball bearings or roller bearings (not shown) inserted between the housings.

The rotatable housing of the planetary reduction gear motor 50 is connected to the locking device by means of a coupling rod 52 . The locking device is arranged under the drive plate 64 and interacts in the exemplary embodiment shown with a locking screw 65 which protrudes from above through the drive plate 64 in the direction of the locking device and is fixed on it. Furthermore, a recess 66 is provided in the drive plate 64 through which the bolt 41 for emergency release protrudes from below. The bolt 41 is movable in the groove of the curved shape.

FIG. 2 shows a better schematic illustration of this arrangement without the drive plate 64 , so that the components of the locking device 10 located below are now visible. According to this figure, the locking device 10 is characterized by a base plate 11 on which several movable components of said locking device are arranged. The bottom plate 11 is mounted on the beam 67 extending between the side frame members 60 . For example, the mounting can be achieved by means of oval holes and threaded couplings. The locking plate 20 is arranged rotatably in a bearing 14 on the base plate 11 . In particular, the bearing 14 may consist of a bolt screwed into the base plate 11 . The locking plate 20 is characterized by a locking groove 21 in which the aforementioned locking bolt 65 protrudes. Although FIG. 2 does not show the drive plate 64 , this figure shows the locking bolt 65 arranged thereon to illustrate its position within the locking groove 21 .

The locking recess 21 can be realized by means of an oval hole, but can also have other suitable shapes. In any case, the shape should be chosen in such a way as to limit or release the movement of the door depending on the rotation of the locking plate 20 about the bearing bolt 14 . In this way, in particular, the support rail 53 in the rail rail 62 should be restrained or released transversely to the longitudinal direction of the vehicle. In the case shown in FIG. 2 , the longitudinal axis of the oval hole 21 extends approximately parallel to the crossbeam 67 , so that the door cannot move transversely to the crossbeam 67 . If the locking plate 20 is rotated in clockwise direction with respect to the bearing 14, the longitudinal axis of the oval hole 21 runs transversely to the beam 67 so that the door can be moved in this direction. In this case, the position of the locking bolt 65 within the oval hole 21 changes.

A coupling lever 52 is arranged on the housing of the motor 50 in order to rotate the locking plate 20 and to achieve the over dead center position of the several levers of the locking device 10 . Since the housing of the motor is arranged on the support rail so that it can be rotated within a certain angular range, it is possible to push the coupling rod 52 away and pull it towards the housing depending on the drive of the motor. The free end of the coupling rod 52 is connected to the locking lever 30 in a hinged manner, and the locking lever 30 is connected to the locking plate 20 in turn through the first joint 32 in a horizontally rotatable manner. To achieve this, the locking lever 30 is slightly inclined and connected horizontally rotatably at approximately its corner point to the bell crank 40 via the second joint 31 . The bell crank 40 is sequentially mounted on the base plate 11 through the bearing 13 in a horizontally rotatable manner. Thus, the locking lever 30 connects the connection 52 , the locking plate 20 and the bellcrank 40 in an articulated manner. Bell crank 40 may have an approximately triangular shape with bearing 13 and joint 31 located at two corners of the triangle. Arranging the above-mentioned bolts 41 for emergency release on the remaining corners, the bolts 41 can be driven through grooves 66 in the drive plate 64 .

For example, as shown in the embodiments of FIGS. 3 and 4 , the articulated connection between coupling rod 52 and locking lever 30 can be produced directly via ball joint 35 . Thanks to this joint 35, the coupling rod 52 can be rotated in either direction relative to the locking lever 30, making it possible to counteract changes in position during articulation. However, it is also possible, for example according to the embodiment according to FIG. 2 , to realize the two directions of rotation separately via the intermediate lever 52 ′ and the two joints 33 and 34 . In this case, the coupling rod 52 can rotate about the horizontal axis relative to the intermediate rod 52 through the first joint 34 , and vice versa, the connecting rod 52 can rotate about the vertical axis relative to the locking lever 30 through the second joint 33 in turn.

Figure 3 shows the locking device 10 in the closed position. In this case, the locking plate 20 is rotated in the bearing 14 so that the locking bolt 65 , shown in dotted lines, in the oval hole 21 limits movement transversely to the drive unit beam. This direction of movement is identified by reference character VR in FIG. 3 . Furthermore, the locking lever 30 and bell crank 40 are in the over dead center position. In this case, a connecting line VV exists between the bearing 13 of the bell crank 40 and the joint 32 between the locking lever 30 and the locking plate 20 . A further connecting line VV exists between the bearing 13 of the bell crank 40 and the joint 31 between the locking lever 30 and the bell crank 40 . In the over dead center position of the two levers 30 and 40, the two connecting lines comprise the angle α.

The levers 30 and 40 can be moved out of the over dead center position by driving the coupling rod 52 in the manner of the motor, so that the coupling rod 52 pulls the left end of the locking lever 30 in FIG. 3 in the direction of the motor as shown by the arrow in FIG. 4 . Thus, the locking lever 30 pivots in an anticlockwise direction, but this pivoting movement of said locking lever is only possible when the bellcrank 40 and the locking plate 20 are simultaneously rotating in their respective bearings 13, 14 occur. To achieve this, the bell crank 40 is rotated in a clockwise direction with respect to the bearing 13 , wherein this also applies to the rotation of the locking plate 20 in the bearing 14 . In this way, the two connecting lines VV and VU temporarily lie on top of each other until they move away from each other again, thereby overcoming the dead center position. During the reverse closing process and the movement of the coupling rod 52 away from the motor, the two connecting lines VV and VU temporarily lie on top of each other until they reach the over dead center position shown in FIG. 3 .

During the opening process, the locking plate 20 is simultaneously rotated about the bearing 14, thereby positioning the oval locking hole 21 transversely to the beam 67, that is, the door can be moved transversely to the beam, since the locking bolt can now Move in the oval hole 21. If an outwardly opening locking slot is used instead of an oval hole, it is also possible to move the locking bolt completely out of the locking slot. In the situation shown in FIG. 4, the movement of the locking device 10 in the direction VR has already taken place during the opening process of the door, so that the indicated locking bolt 65 is no longer positioned in the area of the base plate 11, but is the lateral offset from this. Thus, the support rail 53 has moved together with the locking device 10 in the direction of the outside of the vehicle within the rail track 62 .

Furthermore, the bell crank 40 can also be used for emergency release in order to open the door without hinges by means of the coupling lever 52 and the motor in an emergency situation. To achieve this, for example, a bolt 41 is arranged in the region of the bell crank 40 and the bell crank 40 can be rotated clockwise about the bearing 13 by manually moving this emergency bolt 41 . In particular, said manual actuation can be achieved by means of at least one Bowden cable connected to a manually activated emergency brake. In this way, the over dead center position between bell crank 40 and locking lever 30 can also be released. Upon its actuation, the emergency bolt 41 moves within the groove 66 (see FIG. 1 ), so that the actuation of the bolt 41 over the drive plate 64 can take place.

FIGS. 3 and 4 also show that the base plate 11 is characterized by a recess 12 in the region of the locking plate 20 . In the region of this groove 12 the thickness of the base plate 11 is reduced to such an extent that the extension arm 22 of the locking plate 20 can move within the groove 12 during its rotation. In this case, the underside of the extension arm 22 facing the base plate 11 is located closer to the base plate 11 than the remaining underside of the locking plate 20 . Furthermore, FIG. 4 shows that the groove 12 in the base plate 11 is realized in a curved shape, especially in the region of the bearing 14 , so that the entire material thickness of the base plate 11 is available for the configuration of the bearing 14 on the base plate 11 .

In this way, the corresponding shape of the recess 12 makes it possible to realize a stop 12 ′, on the surface of which the locking plate 20 rests only against the extension arm 22 in the maximum open position. However, it is also possible to configure a different type of stop against which the locking plate 20 or other components of the locking mechanism abut in the unlocked position.

Furthermore, the extension arm 22 can be connected to the locking plate by a connecting rod 23 , which is also rotatably mounted on the other end of the support rail 53 , so that the two locking plates can be rotated synchronously by the motor 50 and the coupling rod 52 . In this case too, locking elements such as bolts can be arranged on the drive plate 64 in the region of the second locking plate, so that the door can be locked on both sides of the support rail 53 .

In order to prevent an additional rotation of the locking lever 30 in the clockwise direction in the over dead center position, that is to say outside the over dead center position, the base plate 11 can be provided with a stop against which the locking lever 30 abuts in a defined position. superior. In this case, for example, the locking lever 30 can be realized such that it rests against the bearing 13 in the maximum overdead point position. In an exemplary embodiment of the invention, a plastic stop for this purpose is arranged on the locking lever 30 in the region between the coupling point 35 of the coupling rod 52 and the joint 31 together with the bell crank 40 , wherein Preferably, the plastic stop has a concave outer profile in the form of a bearing 13 abutting the stop circumference.

Furthermore, a catch element 15 can be formed on the base plate 11 , wherein the end of the locking lever 30 connected to the coupling rod 52 (or intermediate rod 52 ′) comes into contact with said catch element when it moves over this area. To achieve this, for example a corrugated metal sheet 15 can be arranged on the base plate 11 . The corrugated metal plate 15 protrudes from the bottom plate 11 to such an extent that it comes into contact with the end of the coupling rod 52 or the locking lever 30 , respectively, to which these components are coupled when moving on the metal plate 15 . For example, the locking lever 30 may have, on its underside, a contact point characterized in the manner of a ball or round bolt in contact with the height of the corrugated metal sheet 15 . In this way, the locking lever 30 can be locked on the base plate 11 when the contact point of the locking lever 30 engages between two levels of the corrugated metal plate 15 in a defined position. Preferably, the corrugated metal plate 15 is spring mounted on the base plate 11 so that it yields when it contacts the locking lever 30 and springs back again when the contact point of the locking lever 30 engages into the recess. The locking lever 30 can then be removed from said recess against the spring force, wherein the corrugated metal plate 15 yields again while the locking lever 30 slides over adjacent heights. All in all, such a catch element 15 can be used as an additional safeguard against inadvertent release of the overdead position in the locked state of the locking device.

List of reference marks:

10 locking device

11 Bottom plate

12 sunken

12', 12" Recessed Profile

13 Bearing of double arm crank

14 Bearing for locking plate

15 catch element, corrugated metal sheet

20 locking plate

21 Locking groove, oval hole

22 extension arm

23 connecting rod

30 Locking lever

31, 32, 33, 34 joints

35 ball joint, joint point

40 bell crank

41 Drive element, bolt, emergency release

50 motor

51 helical gear

52 connecting rod

52' center pole

53 Support rail

54 Transmission elements

55 rail roller

60 bracket parts

61 wheel

62 side track, rail track

63 accessories

64 driver board

65 Locking element, locking screw

66 grooves

67 Beam

Claims (15)

1. the locking device (10) of stopping sliding door for the vehicle of vehicle especially public passenger transportation, including can be in institute State at least one door leaf being transferred on the longitudinal direction of vehicle and between Guan Bi and open position, move driving of described door leaf Dynamic device (50), wherein, locking device (10) includes bar assembly (20；30；40), it can be introduced into dead-centre position thus in institute State and in the make position of door, lock described door；

It is characterized in that, locking device (10) has and is characterized as base plate (11), at the upper latch (20) of base plate (11) and both arms song Handle (40) is rotatably installed in respective bearing (13 in the plane that the plane being parallel to described base plate extends；14) in, and It is characterized in that, bell crank (40) and latch (20) are connected to each other by locking lever (30), described locking lever (30) It is separately mounted in articulated manner on these assemblies, wherein, owing to locking the hinged of lever (30), it is possible to by bell crank (40), locking lever (30) and latch (20) introduce a position, in this position bell crank (40) bearing (13) and lock Connecting line (VV) between tight joint (32) between lever (30) and latch (20) and the bearing of bell crank (40) (13) connecting line (VU) between joint (31) and between bell crank (40) and locking lever (30) in crossing dead-centre position, Wherein, it is possible to by the reverse hinged release of locking lever (30), this crosses dead-centre position, wherein by latch (20), bell crank And locking lever (30) is arranged in the same sides of base plate (11) (40).

Locking device the most according to claim 1, it is characterised in that bearing (13；14) include respectively being fixed on base plate (11) bolt on, thus opposed bottom (11) is rotatably mounted latch (20) and/or bell crank (40).

Locking device the most according to claim 2, it is characterised in that described bolt is screwed in base plate (11).

4. according to the locking device described in Claims 2 or 3, it is characterised in that realize bell crank the most respectively (40) and/or latch (20), thereon at respective bearing (13；14) forming hollow cylinder in region, wherein, this is hollow The longitudinal axis orthogonal bell crank (40) of cylinder and/or the board plane of latch (20) extend, and its length is more than each The thickness of plate, wherein, respective bearing (13；14) bolt is rotatably guided in this hollow cylinder.

5. according to the locking device described in any one of claim 1-4, it is characterised in that latch (20) have be characterized as locking Groove (21), the locking element (65) being arranged rigidly on described vehicle at least engages in the make position of locking device (10) In the inner, wherein, make position is arranged latch (20), thus locking element (65) limits transverse to described longitudinal direction of car The motion of the latch (20) in direction, wherein, arranges described latch in unlocked position, thus locking element (65) will not limit The motion of the system latch (20) transverse to described longitudinal direction of car direction.

Locking device the most according to claim 5, it is characterised in that described locking groove is slotted eye (21).

Locking device the most according to claim 6, it is characterised in that in the locking of the longitudinal direction transverse to described vehicle During the motion of plate (20), it is possible to move locking element in the unlocked position of locking device (10) in slotted eye (21) (65)。

8. according to the locking device described in any one of claim 1-7, it is characterised in that be used in the upper formation of bell crank (40) The driving element (41) crossing dead-centre position between release bell crank (40) and locking lever (30).

Locking device the most according to claim 8, it is characterised in that described driving element is for stretch out from bell crank (40) Bolt (41).

10. according to the locking device described in any one of claim 1-9, it is characterised in that catch unit upper formation of base plate (11) Part (15), wherein, locking lever (30) can be engaged in the definition position under the locking state of locking device (10) described In capturing element.

11. locking devices according to claim 10, it is characterised in that capturing element (15) is corrugated metal sheet (15), its spring is arranged on the surface of base plate (11).

12. according to the locking device described in any one of claim 1-11, it is characterised in that locking lever (30) is at locking device (10) block on base plate (11) in the definition position under released state.

13. according to the locking device described in any one of claim 1-12, it is characterised in that locking lever (30) is at locking device (10) block on base plate (11) in the definition position under locking state.

14. locking devices according to claim 13, it is characterised in that locking lever (30) is against bell crank (40) Bearing (13).

15. 1 kinds of stopping sliding doors of vehicles for vehicle especially public passenger transportation, it is characterised in that it has and is characterized as root According to the locking device described in any one of claim 1-14.